Lead alloy



Patented Kpr. 30, 1940 LEAD ALLOY v Francois Cuvelliez, Hoboken-lez-Anvers, Belgium, v assignor to Socit Gnrale Metallurglque de Hoboken,

Hoboken lea Anvers Belgium, a

Belgian limited company No Drawing. Original application August 2, 1938,

Serial No. 222,670. Divided and this application February 9, 1939, Serial No. 255,509. In

Great Britain October 15, 1937 1 Claim.

This application is a division of my application Ser. No. 222,670 filed August 2, 1938.

This invention relates to lead alloys to heused in the chemical industry.

A lead alloy according to the present invention is of the usual compact, non-porous, structure, and comprises from 0.3 to 13% Sb and from 0.2 to 5% Hg.

Moreover, the alloy contains one or more of the metals Zn, Ca, Bi:

Percent Zn 0 to 0.6 'Ca 0 to 0.1 B1 0 to 1, the rest being lead The non-porous 'alloys according to the present invention not only resist corrosion by chemical agents, more particularly of sulfuric acid and nitrous gases, as is the case with sulfuric acid plants of the chamber method type, but in addition they havealso a high resistance to mechanical and physical efforts.

The alloy according to the present invention has a compact structure, such as industrial alloys generally have when they are made by the known processes of casting, moulding or rolling.

I claim: I

A compact lead alloy to be used more particularly against corrosion by chemical agents,

consisting of from 0.3 to 13% of antimony, from 0.2 to 5% of mercury, from 0.1 to 0.6% of zinc,

from 0.005 to 0.1% of calcium and from 0.2 to 1% a of bismuth, the rest being lead. 1 mancors cuvmmz'. 

